Storage battery.



W. E. POOLE.

STORAGE BATTERY.

APPLIGATION FILED MAY 23,1914.

tented Oct. 27, 1914.

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WILLIAM E. POOLE, QF CHICAGO, ILLINOIS, ASSIGNOB. '1'0 IBEX BATTERY COIIPAN, 1?

CHICAGO, ILLINOIS, A CORPORATION F ILLINOIS.

' STORAGE BATTERY.

Specification of Letters Patent.

Patented 00am/,1913i Appncauon mea may as, 1914. serial No. 840,430.

" 0 all whom, 'it may concern lle it known that I, IVILLIAM E. PooLn, a'

. proved means for venting and at the same time preventing the electrolyte from running of the vent opening whe'n the storage battery is in any tilted position that it might ordinarily assume under general conditions. x

In my application, Ser. No. 819,875, filed Feb. 20th, 1911-, I have shown a venting arrangement -for storage batteries designed to prevent spilling of the electrolyte when the storage battery is tilted upoii its long axis. 'lhe construction therein shown would perin'it o't' the spilling of the electrolyte upon the tilting oli the storage battery on its short axis to any great 'degree The object ot' my present invention as herein described, is to provide a vent arrangement whereby the battery may be tilted upon its long or short axis without the electrolyte ruiming through the vent open ing.

In the accompanying drawing Figure 1 is a vertical sectional view ot' the line 11 of Fig. 2. Fig. 2 is a plan view ot' the battery in its casing with the casing removed and parts being broken away.

Referring now more particularly to the drawings, the containing case or housing 3 is preferably of sheet metal and is provided with a sheet metal cover 4.. lVithin the casing is a battery jar 5 of glass, rubber or other insulating material and is subdivided into battery cells by `verticalpartition walls In each cell are a suitable number ol electrode plates 7 mounted ou supporting ridges 8 on the bottom wall of the ell 5. Each cell cover 9 has a threaded openyi, g 10 near one corner of the cell for receiving the threaded 'flange 11 of the hollow plug 12,

herein shown as a liller plug, that is pro-v vided with a cap 13 having a threaded connect1onwith the plug l2. llach plug is prO- vided with a lateral opening 14 for receiving one endof a vent duct or tube 15 that is provided at its end with a ventV olltlet 16 opening upwardly.

The cells 5 containing 'the electrode plates are adapted to contain a sufficient -amount of acid or electrolyte to cover the electrode plates therein so that the acid line in each one, when the battery is standing on its base and is in a horizontal position, is at the level indicated at ((1) and the gases will4 rise into the plug 12 and thence through the vent tube 15 escaping through the o ning 1G therein. When the batter is tilte upon its long axis so that the en of the casing 3 adjacent the vent opening 16 is down, the level of the electrolyte `within the cells will be below the )lug 12 as indicated by the electrolyte level line (L) and when tilted in the opposite direction so that the end of the casing adjacent to the vplu 12is down,.the

level of the electrolyte will be below the4 vent opening 16 as indicated by the level line (c). In both instances the electrolyte will not llow through the vent opening 16.

In case the battery is tilted upon its short axis so as to lie upon one side, the electrolyte level will be along the lines indicated zt (d).

.When tilted to the other side the electrolyte level will be alone the lines indicated at (e). On the level the ventl opening 16 is above the level of the electrolyte and when on the level (c) the plug opening is above the level of the electrolyte so that the electrolyte cannot escape.

In order to better protect the vent tubes and to seal the battery,l some suitable com position 17 may be poured into the casing around thebattery j ar and over the cell covers and to 'a level below the vent opening 16. This composition, after hardening, will ell'ecti'vely seal the batteryand holds the vent tube securely in place but permits however, the removal of the cap 13.

Having now described my invention I claim:

l. In a storage battery, an electrolyte containing receptacle, a cover therefor, a plug extending from said cover and a vent tube communicating withsaid plug extend* ing slantingly upward therefrom and diagonally across said receptacle and having a vent opening adjacent its highest end.

2. In a storage battery, an electrolyte containing receptacle, a cover therefor, a

:plug-j from said cover near one ond; :md remt tubo in communication with said plug and extending upwardly and dgtgqmrlly across said receptacle and having a vom openirgmdjaoent its highest end.

. 'llm v.tt torage battery, an electrolyte irlomtommg reptacl'e, a cover therefor, a lo@ extending from said @over at one side tll1@0;t`, .amd ovomt tube communicating mmm@ with said plug and extending diagonally 't0 across said receptacle to the sido opposto said plug and having a vent oponlng adja' cent its free end.

WILL EOOLE.

1Witlwses:

Smm; M. RYAN, JAMES R. OFFIELD, 

